Linking device



1,642,9'6' Sept. 20, 1927. A. MIRRA 9 LINKING DEVICE Filed Feb. 20. 192

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Inventor Patented Sept. 20, 1927.

f UNITED STATES ALBERT MIRRA, F PARIS, FRANCE.

, i LKINKING DEVICE.

Application filed February 20, 1926, A Serial No. 89,741, yand in France December 1, `1925.v`

The present'invention has forits object a new linking device which is chiefly applicable to articles ot jewelry suchy as bracelets, necklaces or the like, but can be. further utilized for all constructions whichcomprise assembled pieces, and which although con- Vstituted by rigid elements or units, are to possess'a certain' leziibility.`

The linking device, the object of `the rinvention is chieiiy characterized in Athat it comprises stripsofsuitable shape which are crossed, then bent into position and soldered together, so that ythe whole arrangement canY be pivoted without the use of slots orY pins. In my said linking arrangement, the several unit elements or 'strips have a uniform size and shape'. K

Further vcharacteristics of the invention will be set forth in ,the following description with reference to the appended drawings which are given by way of'v example.

Fig. 1 is a plan .view of a unit element or shaped strip which is employed in the first ,embodiment of the invention, and

Fig.i 2 is a section of the same on the line A-A of Fig. 1.

Fig. 8 is a view correspondingv to an inter- 4 mediate position during Vthe assembling of two like elements Vas shown in Fig. 1, and Fig. 4 is a section ofthe same on the line B-B of Fig. '3. n

Fig. 5 is a plan view of a linkingarrangement according to the invention in the Viinished state, and Y i- V Fig. 6 is a corresponding perspective view. Figs. 7 and 8 relates to a linkingdevice ac` vcording to the invention, adapted to a Vjoint-v ed object.

Fig. 9 vis afplan view ofia portion of' 'suitably shaped strip corresponding tothe pivot joint, as employed in a modificationl of the preceding device.

l To carry out the linking arrangement, according tothe form of construction shown in Figs. 1 to 8, I utilize elements of a single type consisting of strips which are given a special shape, i'or instance [as shown in Fig. 1. The central part of such elements is thicker than the outerparts or wings 2, the thickness atl being three times the thickness at2.

The said elements are placed .together as shown in F igs. 3 and 4 and are then bent upon the lines a-a so that the wings 2 of each element will be brought down upon the will also come togetheim (one of the wings is taken as the unit thickkuponft-he size of the cut-out same side withireference to the central part` V1, with which theynow enter into Contact.

A Dueto'the amount Vand the disposition of the' additionalthickness ot the central parts Al, the wings 2 of the several elements, which are superposed opposite the joint, will not Y afford Vany additional` thickness at` this point,

and in like manner, when'the said wings-are brought upon the central part, their ends If the thickness of ness, one will obtain a.' uniform thickness of 4 upon' the whole length of thelinkedV device.

yThe amount of thefrotation `will depend parts of the elements situated at 3. A Y Y I YIt' the strips were iniinitely thin, the pivoting axis ot ther device'wouldv obviously be situated at o, but in practice, since the strips have a certain thickness, as shown for in stance in Fig. 6, when they `are bent, the pivot axis is so displaced that the actual axis is above the theoretical aXisby a distance `depending upon the thickness of the strips.

` To suitably employ my invention kfor'the linking together 'of the members 4 constituting an object oiiany kind (Figs. 7' and 8), I providea slot at the edges of Athe elements 4:' in which are soldered the differentlinks vof the `device laccording to the invention, the

into a co-operating slot at 6 which is formed in the partl of' the next element ing to the joint.` V y I Having now described my invention, what correspond- I claim as .new and desire *toy secure by Letters Patentis': ,y Y

l. In a linking device a number of'links each of which comprisinga strip having its ends ,rounded inthe shape ofl acircular are vand two V-shaped'v Wings projecting 'trom each rounded end of said strip and having less thickness than said strip, the exterior Ill) fil)

edge of each wing on the portion adjacent to the strip heilig the prolongation of the circular arc of the rounded end of said strip, each wing being adapted to be engaged with its two arms on either side ol the two arms of the adjacent V-shaped wing of the next link, to fit into the rounded end ot' the rstrip oit said next link and to be folded with its free arm lying on one face of said strip.

f2. In a` linking device a number of links each of which comprising a strip having its ends rounded in the shape of a circular are and two V-shape j wings projecting from each rounded end oi said strip and having less thickness than said strip, the exterior edge of each wing on the portion adjacent to the strip being the prolongation ol the circular arc of the rounded end oit' said strip, said two wings being adapted to be engaged respectively with their two arms on either side of the two arms oi the adjacent V- sha ed wings of the two adjacent links, to it into the rounded ends ol the strips of said adjacent links and to be folded with their two free arms lying on the same 'face of said strip.

3. In a linking device a number of links each of which comprising a strip having its ends rounded in the shape of a circular' arc and two V-sl1aped wings projecting from each rounded end of said strip and having less thickness than said strip, the exterior edge of each wing on the portion adjacent to the strip being the prolongation of the circular are of the rounded end of said strip, said two wings being adapted to be engaged respectively with their two arms on either side of the two arms of the adja cent V-shaped wings of the two adjacent links, to fit into the rounded ends of the strips of said adjacent links and to be folded with their two free arms lying on the same face of said strip, and having their ends secured to each ot 1er.

4. In a linking device a number of links each of which comprising a strip having its ends rounded in the shape of a circular arc and two V-shaped wings projecting from each rounded end of said strip and having a thickness which is thc third of the thickness of said strip, the exterior edge of each wing on the portion adjacent to the strip being the prolongation of the circular arc of the rounded end of said strip` said two wings being adapted to be engaged respectively with their two arms on either side of the vtwo arms of the adjacent V-shaped wings of the two adjacent links, to fit into the rounded ends of the strips of said adjacent links and to be folded with their two :free arms lying on the saine face of said strip.

5. In a linking device a number of links each of which comprising a strip having its ends rounded in the shape ot' a circular arc and two Vshaped wings having less 'thickness than said strip and projecting from each rounded end of said strip on only a part of said circular are leaving a free space` lor the rotation of the adjacent links, the exterior edge of each wing on the portion adjacent to the strip being the prolongation of the circular arc oi" the rounded end of said strip, said two wings being adapted to be engaged respectively with their two arms on either side of the two arms of the adjacent V-shaped wings o'l the two adjacent links, to lit into the rounded ends of the strips of said adj acont links and to be folded with their two free arms lying on the same 'face oit said strip.

G. In a linking device a number ot'rlinks each of which comprising a strip having its ends rounded in the shape o't a circular arc, two V-shaped wings projectingr from each rounded end oi said strip anr having less thickness than said strip, the exterior edge of each wing on the portion adjacent to the strip being the prolongation of the circular are ot the rounded end of saidstrip, a stud and a slot in each wing, each stud being adapted to engage the slot in a wing ofthe adjacent link, each wing being adapted to be engaged with its two arms on either si de ot the two arms of the adjacent V-shaped wing ot' the next link, to lit into the rounded end or' the strip of said next link and to be folded with its free armlying on one face of said strip. t

7. In a linking device a number oll flat members which are to be linked together, `grooves on the lower face of said members, anequal number of links each of which comprising a strip having its ends rounded in the shape of a circula r are and two V-shaped wings projecting 'from each rounded end ot said strip and having less thickness than said strip, the exterior edge of each wing on the portion adjacent to the strip being the prolongation of the circular are ot' the rounded end of said strip, each wing being adapted to be engaged with its two arms on either side of the two arms of the adjacent V-shaped wing ot the next link` to lit into the rounded end of the strip oil' said next link and to be folded with its iree arm lying on one face of said strip, each link being inserted in the groove of one of the members to be linked, said grooves being deep enough for having the axis of rotation ot the links on the upper face ot' said iiat members.

In testimony whereot I have signed my name to this specification. i

ALBERT Minna.

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